Where does “О́стрів Змії́ний” come from?

О́стрів Змії́ний (Ukrainian) comes from Romanian Insula Șerpilor, from Russian змеиный, from Russian змея́, from Proto-Slavic zmьja, from Proto-Indo-European dʰéǵʰōm, from Proto-Indo-European -ōm, from Proto-Indo-European -mi.

Ancestry of “О́стрів Змії́ний”, step by step

StepLanguageWordMeaning
1RomanianInsula Șerpilor—
2Russianзмеиныйsnake; serpentine; serpentine, venomous, viperine
3Russianзмея́snake, serpent
4Proto-Slaviczmьjasnake
5Proto-Indo-Europeandʰéǵʰōmearth
6Proto-Indo-European-ōmemphatic suffix or postpositive particle
7Proto-Indo-European-mi—
Every word from Proto-Indo-European -mi →Every word from Proto-Indo-European -ōm →Every word from Proto-Indo-European dʰéǵʰōm →